Can I force the Add row to Google Sheet to populate the row starting from column B?

Yes, you can. If you have a column name in column A that the "Add row to Google Sheet" action can't match, it will automatically skip column A and start populating from column B.  When using Bardeen to add rows to a Google Sheet, it typically maps the data to specific columns based on column names or headers. If Bardeen cannot match a column name in column A (for example, if it's an unusual or placeholder name that doesn't correspond to any data you are trying to add), it will not populate column A and will proceed to populate the subsequent columns, starting from column B.